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Home/Military Standard parts/Seals & Fittings/FSC 5331
Category // FSC 5331 · 53,078 items

O-Ring

Round-section sealing rings used in grooves to seal fluid and gas connections; every item filed here is an O-ring.

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53,078 items

  1. O-RING NSN 5331-01-031-1343 P/N 2-017N219-7 · 2507294-10 · 2507294-10 · 2507294-10 · +3 more
  2. O-RING NSN 5331-01-031-1329 P/N 2507294-19 · 2507294-19 · 2507294-19 · 2507294-19 · +3 more
  3. O-RING NSN 5331-00-759-1689 P/N MILR25988 · MIL-DTL-25988/1 · MIL-R-25988/1A · M25988/1-127 · +3 more
  4. O-RING NSN 5331-00-752-8681 P/N AS3578-272 · MS9021-272 · 200-2339-130 · 2-272 N506-65 · +3 more
  5. O-RING NSN 5331-00-752-8286 P/N 30-25X77-545 · BACP11P247 · NAS1593-247 · 606-516-1943406PC13 · +3 more
  6. O-RING NSN 5331-00-752-8265 P/N 1877647PC25 · 821589PC25 · 593-513-1862821AEPC11 · 608-522-1707652PC22 · +3 more
  7. O-RING NSN 5331-00-752-7820 P/N SP6502 · 82-20014-07 · MILG22050 · MIL-DTL-22050 · +3 more
  8. O-RING NSN 5331-00-752-7728 P/N PRP568-267-4024-65 · AS3578-267 · MS9021-267 · 2-267 N506-65 · +3 more
  9. O-RING NSN 5331-00-735-1702 P/N NAS1612-904 · NAS1612-4 · NAS1613 · NAS1612-4A · +3 more
  10. O-RING NSN 5331-00-732-7648 P/N 5330PL2178607 · J221P122 · 10119525 · J221P122 · +3 more
  11. O-RING NSN 5331-00-727-2240 P/N PRP909-7142-70 · AS113-06-229 · MS29561-229 · 2-229 N4771-70 · +3 more
  12. O-RING NSN 5331-00-726-1416 P/N PRP568-153-4024-25 · AS3578-153 · MS9021-153 · 2-153 N506-65 · +3 more
  13. O-RING NSN 5331-00-725-4365 P/N 274251 · 274251 · 0000274251 · 274251 · +3 more
  14. O-RING NSN 5331-00-725-0758 P/N MS29561-240 · MS29561-240 · MS29561-240 · 2-240 N4771-70 · +3 more
  15. O-RING NSN 5331-00-720-3483 P/N 10013215 · S8316A4 · 10013215 · S8316A4 · +3 more
  16. O-RING NSN 5331-00-720-2125 P/N 7941379-004 · 69490B35 · 702H0094REVGPC207 · 763C0006REVKPC20 · +3 more
  17. O-RING NSN 5331-00-712-1473 P/N 8893082-14 · AMS3215 · AS568-110 · 8893082-14 · +3 more
  18. O-RING NSN 5331-00-706-6701 P/N ARP568-906MILG23652TYPE1 · F17269-69 · AS568-906MIL-G- 23652 TY 1 · AS568-506MIL-G- 23652 TY 1 · +3 more
  19. O-RING NSN 5331-00-702-0218 P/N 264681R1 · 264681R1 · AS568B-260 · MIL-R-3533 · +3 more
  20. O-RING NSN 5331-00-699-2097 P/N 5855-0156-00 · 5805 · 29513-7DC675 · PRP568-007DC675 · +3 more
  21. O-RING NSN 5331-00-691-7916 P/N 5180314 · 5180314 · 5180314 · PC5180314 · +3 more
  22. O-RING NSN 5331-00-689-6470 P/N 24-49813-FIND NO-8 · 7HA1449-1D4CP · 24-49406 FIND 3 · 7HA1449-1D4 · +3 more
  23. O-RING NSN 5331-00-684-5620 P/N 318S5 · MS9021-227 · AS3578-227 · 318S5 · +3 more
  24. O-RING NSN 5331-00-682-7504 P/N 55E39-2-110 · 182566 · 2-110 L1007-80 · 2-110L308-80 · +3 more

Ranked by how many manufacturer cross-references are on file. Every item is quote-only — the federal record carries no price and no stock, and Atlas publishes neither. Browsing stops at page 500 of this class — past that, search by number. Send a whole list →

Questions about O-Ring

What does federal supply class 5331 cover?

Federal supply class 5331 covers O-rings, the round-section sealing rings used in grooves to seal fluid and gas connections. Every item filed here is an O-ring.

How is a part in federal supply class 5331 identified?

Because every item in the class has the same item name, the NSN is what tells one O-ring from another. Each NSN record carries the characteristics on file for that exact ring and the part numbers cross-referenced to it, so a buyer can work from an MS or AS number, a manufacturer number, or a drawing callout. Each item in the class has its own National Stock Number (NSN) record, listed above.

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